Omron OMNUC W R88A-NCW152-DRT, Manual

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9 Troubleshooting
9-6
9
9.3 Troubleshooting with Alarm Displays
Problems that occur in the Servo Drivers are displayed on the Servo Driver's front display as
“A.
†† ” or “CPF †† ”. “A.- -”, however, does not indicate an alarm. Refer to the following
sections to identify the cause of an alarm and the action to be taken.
Contact your OMRON representative if the problem cannot be solved by the described proce-
dures.
„ A.02
A.02: Parameter Corruption
Display and Outputs
Note O
FF: Output transistor is OFF (alarm state).
Status and Remedy for Alarm
Alarm Outputs
Alarm Code Outputs ALM Output
ALO1 ALO2 ALO3
OFF OFF OFF OFF
Cause Remedy
A Power turned OFF during parameter write.
Alarm occurred at the next power ON. • Initialize parameters using Fn005 and
reinput user settings.
• Replace the Servo Driver.
B Circuit board (1PWB) is defective. Replace the Servo Driver.
C The DeviceNet Unit is defective. Replace the DeviceNet Unit.
A, B, C
At power on